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Grade 5 Fractions of Whole Numbers

Grade 5 · Building confidence · 12 questions · Version PG-R6AGVU-1RQ7

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1.What is 1/5 of 20?
2.What is 2/8 of 48?
3.What is 1/2 of 8?
4.What is 1/5 of 70?
5.What is 1/3 of 39?
6.What is 1/3 of 54?
7.What is 3/5 of 90?
8.What is 2/4 of 28?
9.What is 1/10 of 70?
10.What is 1/2 of 44?
11.What is 1/8 of 16?
12.What is 4/8 of 64?

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 2
  1. What is 1/5 of 20?4
  2. What is 2/8 of 48?12
  3. What is 1/2 of 8?4
  4. What is 1/5 of 70?14
  5. What is 1/3 of 39?13
  6. What is 1/3 of 54?18
  7. What is 3/5 of 90?54
  8. What is 2/4 of 28?14
  9. What is 1/10 of 70?7
  10. What is 1/2 of 44?22
  11. What is 1/8 of 16?2
  12. What is 4/8 of 64?32

Worked example

5/6 of 42 = 35. Divide 42 by 6, then multiply 7 by 5.

Common mistake

Multiplying before dividing and creating unnecessary large numbers.

Helpful hint

Divide by the denominator first when it divides evenly.